Aspirator canister



FIG. 1 is a side elevation view of the canister; both sides are identical;

FIG. 2 is a front elevation view of the canister;

FIG. 3 is a rear elevation view of the canister;

FIG. 4 is a top elevation view of the canister; and,

FIG. 5 is a bottom elevation view of the canister.

The broken lines represent features that are not part of the claimed design. 

The ornamental design for an aspirator canister, as shown and described. 